// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef BASE_ANDROID_JNI_STRING_H_
#define BASE_ANDROID_JNI_STRING_H_

#include <jni.h>
#include <string>

#include "base/android/scoped_java_ref.h"
#include "base/base_export.h"
#include "base/strings/string_piece.h"

namespace base {
namespace android {

    // Convert a Java string to UTF8. Returns a std string.
    BASE_EXPORT void ConvertJavaStringToUTF8(JNIEnv* env,
        jstring str,
        std::string* result);
    BASE_EXPORT std::string ConvertJavaStringToUTF8(JNIEnv* env, jstring str);
    BASE_EXPORT std::string ConvertJavaStringToUTF8(const JavaRef<jstring>& str);
    BASE_EXPORT std::string ConvertJavaStringToUTF8(JNIEnv* env,
        const JavaRef<jstring>& str);

    // Convert a std string to Java string.
    BASE_EXPORT ScopedJavaLocalRef<jstring> ConvertUTF8ToJavaString(
        JNIEnv* env,
        const base::StringPiece& str);

    // Convert a Java string to UTF16. Returns a string16.
    BASE_EXPORT void ConvertJavaStringToUTF16(JNIEnv* env,
        jstring str,
        string16* result);
    BASE_EXPORT string16 ConvertJavaStringToUTF16(JNIEnv* env, jstring str);
    BASE_EXPORT string16 ConvertJavaStringToUTF16(const JavaRef<jstring>& str);
    BASE_EXPORT string16 ConvertJavaStringToUTF16(JNIEnv* env,
        const JavaRef<jstring>& str);

    // Convert a string16 to a Java string.
    BASE_EXPORT ScopedJavaLocalRef<jstring> ConvertUTF16ToJavaString(
        JNIEnv* env,
        const base::StringPiece16& str);

} // namespace android
} // namespace base

#endif // BASE_ANDROID_JNI_STRING_H_
